2003

5.1

1970

5.3

1989

5.8

2023

0.0

1956

6.5

2004

7.0

1976

6.5

1999

7.1

1981

7.1

1970

6.1

1971

6.4

1972

6.2

1973

5.7

1966

7.1

2001

6.2

1960

7.3

2002

7.0

1965

6.9

1997

6.2

2015

6.4